Springseeds

Springseeds draw water from deep underground. They can live to be centuries and will have dug hundreds of metres down by then. Along the way, they can pick up water from their surroundings, suctioned to the main plant at the surface that takes care of photosynthesis as well as the production of seeds. The roots are black with a white interior. The white stem on the surface has several pink bulbous formations surrounded by green leaves.
The bulbs have the form of a cushion pushed in at the middle where there is a small black spike coming out of the centre. This is the shell for the seeds. The seeds beneath the shell are a more than a handful soft, white grape-sized balls with a very juicy and slightly meaty taste. This plant is edible, but if you are not careful while removing the seeds it will explode and shoot a high-pressure water.
In their normal cycle, Springseeds build water pressure in their bulbs until it can fire the seed-shell in a small explosion of water. The shell includes enough water to give the potential new plant(s) a start. The original plant has roots next to its stem specifically to collect the water used to launch the pod.